Universal Thread Grinding Company

What Universal Thread Grinding Company does

Universal Thread Grinding Company is a privately held, Fairfield, Connecticut-based specialty manufacturer founded in 1946 that designs and produces precision lead screw assemblies for micro linear positioning applications. The company evolved from regional customized thread grinding services into a focused product line of 1/4-inch and 1/2-inch diameter hardened A6 tool steel lead screw assemblies with industry-leading lead accuracies of 10 microinches per turn and 25 microinches per inch, paired with patented self-aligning, self-adjusting, radially preloaded phosphor bronze nuts and self-aligning thrust bushings covered by US Patents 3,977,269; 3,831,460; and 4,434,677.

Its product ecosystem includes the core lead screw assemblies, supporting lubricants (B-3 Lead Screw Oil, KS-46 Lead Screw Grease), and an optional factory-installed lubricator accessory for continuous-duty use; all assemblies are RoHS-compliant and shipped factory-assembled, preloaded, and run-in. Universal Thread serves precision equipment manufacturers across multiple verticals — semiconductor manufacturing equipment, photomask inspection, prepress imaging, graphic imaging equipment (color scanners, printers, recorders), microscope stages, and automatic focusing axes — as well as customers requiring custom thread grinding configurations manufactured to the same accuracy standards in single or production quantities.

The company operates a factory-direct sales model through phone, email, and a website-based RFQ system, with standard sizes shipping from stock inventory and custom configurations built to order. Pricing is quote-based and not publicly disclosed, with the company positioning itself to help customers specify the lowest-cost configuration meeting their requirements. Geographic reach is described as worldwide through a single-site US operation, with serial-number-level traceability etched into every shipped assembly from manufacture through delivery and archiving.

Name

Universal Thread Grinding Company

Legal name

Universal Thread Grinding Company

Website

https://universal-thread.com

Company type

Private

Founded year

1946

Operating status

Operating

Headcount range

11–50 employees

Short description

Universal Thread Grinding Company, founded 1946 in Fairfield, CT, manufactures precision lead screw assemblies (10 µin/turn accuracy) with patented self-aligning nuts for micro positioning applications serving semiconductor, imaging, microscopy, and custom OEM customers worldwide via direct factory sales.

Ownership category

akta.pro rank

Product category

Precision Lead Screw Assemblies

NAICS

Bolt, Nut, Screw, Rivet, and Washer Manufacturing (332722), Precision Turned Product Manufacturing (332721)

SIC

Screw Machine Products (3451), Bolts, Nuts, Screws, Rivets & Washers (3452)

akta.pro primary industry

Metal Forming & Fabrication Machines (Presses, Bending, Shearing, Stamping) (IMAHADAC)

akta.pro secondary industry

Strapping & Banding Machines (IMAHAOAM)

Keywords

• Precision lead screws
• Thread grinding services
• Linear positioning components
• Lead screw assemblies
• Precision machining

Headquarters

HQ city

Fairfield

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure

Revenue model

1. Precision Lead Screw Assembly Sales: Revenue generated from sale of standard and custom precision lead screw assemblies. Standard sizes are maintained in stock and ship immediately. Custom configurations are manufactured to order in single or production quantities. Includes optional lubricator accessory. RoHS-compliant products.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Universal Thread Grinding Company manufactures precision lead screw and nut assemblies for micro linear positioning applications. The company produces 1/4" and 1/2" diameter assemblies with industry-best lead accuracies of 10 microinches per turn and 25 microinches per inch, featuring patented self-aligning, self-adjusting preloaded phosphor bronze nuts. Standard sizes are maintained in stock for immediate shipment, while custom configurations are manufactured to order.

Product overview

Universal Thread Grinding Company offers precision lead screw assemblies as its core product line, available in 1/4" and 1/2" diameter configurations with travel ranges up to 8" and 20" respectively. These assemblies feature patented self-adjusting, preloaded phosphor bronze nuts and self-aligning thrust bushings, with industry-leading lead accuracies up to 10 microinches per turn and 25 microinches per inch. Supporting products include B-3 Lead Screw Oil and KS-46 Lead Screw Grease lubricants, plus an optional factory-installed lubricator accessory for continuous-duty applications. All assemblies are RoHS-compliant and shipped fully assembled, preloaded, and run-in.

Differentiator

Problem solved

Functional benefit

Products and services

• Precision Lead Screw Assemblies (1/4" diameter) High-precision lead screw assemblies for micro linear positioning applications. Features lead accuracies of 10 microinches per turn and 25 microinches per inch, patented self-aligning preloaded phosphor bronze nut, and self-aligning thrust bushing. Maximum available travel of 8 inches. RoHS-compliant and shipped factory-assembled, preloaded, and run-in. Used by manufacturers of color scanners, printers, semiconductor equipment, photomask inspection systems, microscope stages, and other precision positioning equipment.
• Precision Lead Screw Assemblies (1/2" diameter) High-precision lead screw assemblies for micro linear positioning applications. Features lead accuracies of 10 microinches per turn and 25 microinches per inch, patented self-aligning preloaded phosphor bronze nut, and self-aligning thrust bushing. Maximum available travel of 20 inches with standard leads ranging from 0.025" to 0.400" and 1 mm to 5 mm. RoHS-compliant and shipped factory-assembled, preloaded, and run-in.
• B-3 Lead Screw Oil Boundary lubrication oil specifically formulated for lead screw assemblies, providing excellent wear protection and uniform torque transition from static to dynamic conditions. Safety Data Sheet available for compliance.
• KS-46 Lead Screw Grease Light grease lubricant for lead screw assemblies, offering exceptional torque and wear characteristics with less frequent relubrication requirements compared to oil. Safety Data Sheet available for compliance.
• Optional Lubricator Factory-installed lubricator on the lead nut that removes dust and continuously lubricates the screw for exposed applications where periodic lubrication is not feasible. Adds 0.38" to nut length for 1/2" assemblies; not available for 1/4" assemblies. Periodic reoiling required.

Quantifiable outcome

• Lead accuracy improved from standard 50 µin/turn to 10 µin/turn (5x improvement)
• +2 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Nook Industries: Manufacturer of precision lead screws, acme screws, ball screws, and linear motion components. Directly comparable as a long-established US-based supplier offering both standard and custom lead screw products to industrial OEM customers.
• SDC (Steinman Design & Consulting): Online-focused supplier of precision lead screws, anti-backlash nuts, and motion components. Comparable as a direct competitor in catalog and custom precision lead screw products for OEM and prototyping customers.
• Roton Products: Specialty manufacturer of lead screws, ball screws, and anti-backlash nuts for precision motion applications. Directly comparable in product offering, particularly in anti-backlash and custom lead screw configurations.
• Joyce/Dayton Corp: Manufacturer of precision lead screws, ball screws, jacks, and linear actuators. Comparable as a US-based custom and standard lead screw supplier serving similar industrial OEM and precision equipment markets.
• Haydon Kerk Motion Solutions: Manufacturer of precision lead screws, linear actuators, and motion control components. Directly comparable as a specialty supplier of high-precision lead screw assemblies for OEM applications, competing in the same precision positioning market as Universal Thread.

Broad incumbents

• NSK Ltd. Global manufacturer of bearings, ball screws, and linear motion components. Comparable as a broad incumbent in precision motion products serving industrial OEMs worldwide, with overlapping precision lead screw and ball screw offerings.
• Bosch Rexroth: Global supplier of linear motion, drive, and control technology including ball screws and lead screw assemblies. Comparable as a broad incumbent with deep industrial OEM relationships, often the default supplier where Universal Thread competes on niche precision specifications.
• SKF Group: Global bearings, seals, and linear motion manufacturer with a portfolio that includes precision lead and ball screws. Comparable as a broad incumbent offering linear motion products as part of a wider industrial component portfolio.
• THK Co., Ltd. Global leader in linear motion components including LM guides, ball screws, and linear actuators. Comparable as a broad incumbent offering linear motion products that overlap with Universal Thread's lead screw product line, though THK is far larger and broader in scope.
• Thomson Industries (Danaher): Manufacturer of linear bearings, slides, lead screws, and ball screws. Comparable as a broad incumbent owned by Danaher, offering precision lead screw products among a wider linear motion portfolio serving industrial OEMs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Universal Thread Grinding Company